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发明名称
Improvements in or relating to rotary pumps of the gearwheel type
摘要
申请公布号
GB730020(A)
申请公布日期
1955.05.18
申请号
GB19520011170
申请日期
1952.05.02
申请人
DRYSYDALE & COMPANY LIMITED;JOHN YATES
发明人
分类号
F04C11/00
主分类号
F04C11/00
代理机构
代理人
主权项
地址
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